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June 2005 © TOSHIBA TEC e-STUDIO281c/351c/451c ADJUSTMENT
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3.11.3 Black developer unit lift up/down timing adjustment
Perform this adjustment only when the stop position of the black developer unit lift up/down lever devi-
ates from the reference and a CEB0 error occurs.
The reference position means that the rib of the developer unit cover and the cutout of the black devel-
oper unit lift up/down lever are not overlapped as shown in Figure "A". (The cutout is in the 9 o'clock
position.)
Adjustment procedure
(1) Perform 03-460 Black developer unit lifting movement ON/OFF (continuous lifting movement)
and check the stop position of the black developer unit lifting lever. At this time, check the devia-
tion amount between the rib and the cutout of the lever.
(2) The stop position is "B" (the cutout is lower than the reference position):
Make the value of the adjustment code (05-499) smaller so that the stop position is closer to the
reference. Making the value smaller by 1 turns the lever circumference by approx. 3 mm.
Note: Note:
If the adjustment cannot be performed though 0 is input, the clutch may have failed. Examine the
clutch.
(3) The stop position is "C" (the cutout is upper than the reference position):
Make the value of the adjustment code (05-499) larger so that the stop position is closer to the
reference. Making the value larger by 1 turns the lever circumference by approx. 3 mm.
Note: Note:
If the adjustment cannot be performed though 8 is input, the clutch may have failed. Examine the
clutch.
Note:
If an error occurs even though this adjustment is performed, other causes may be considered.
Examine and check the defect according to the methods in troubleshooting.
A
C
B
Rib
Cutout
Black developer unit
lifting lever
05/07